高分辨率反演在春风油田储层预测中的应用
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摘要
车排子地区春风油田研究区地震剖面上,近缘沉积体系沙一段1砂组储层呈弱反射或空白反射,储层描述难度大。为解决此问题,首先,对研究区地震资料开展了具有针对性的地震拓频处理和测井资料的标准化处理,获得了较为可靠的基础资料;其次,以精确层位解释为基础,开展精细储层标定与子波提取,明确了储层与地震的对应关系;然后,建立符合地质规律的初始波阻抗模型,经试验获得了适合该区的反演参数;最后,应用测井约束地震反演技术,得到了高分辨率的波阻抗数据体。研究区沙一段1砂组有利砂体的平面展布规律分析结果表明,中部及西部近物源储层较为发育,为有利的目标区域。该研究为研究区下一步勘探部署提供了重要依据。
Sands 1 of the first member of Shahejie Formation in the submarginal sedimentary system presents the weak reflection or blank reflection in the seismic profile of Chunfeng Oilfield in Chepaizi Area.Reservoir characterization is difficult.To resolve the problem,target-oriented seismic data processing and logging data standardization processing are conducted for the seismic data of the study area,and reliable basic data have been acquired.Then,based on the accurate zone interpretation,reservoir calibration and wavelet extraction are carried out and the correspondence relationship between reservoir and seismic is made clear.The wave impedance model conformed with geologic rule is established and the inversion parameters for the area are obtained through test.Finally,high-resolution wave impedance data volume is gained by the using of logging-constrained inversion.Through the analysis of the distribution rule of favorable reservoir sand body for Sands 1 of the first member of Shahejie Formation,it is believed that the near source reservoirs present a good development in the middle part and western part of the study area.The favorable reservoirs are mainly distributed in the western part and middle part of the study area.The study result provides an important reference for further hydrocarbon exploration in the area.
Sands 1 of the first member of Shahejie Formation in the submarginal sedimentary system presents the weak reflection or blank reflection in the seismic profile of Chunfeng Oilfield in Chepaizi Area.Reservoir characterization is difficult.To resolve the problem,target-oriented seismic data processing and logging data standardization processing are conducted for the seismic data of the study area,and reliable basic data have been acquired.Then,based on the accurate zone interpretation,reservoir calibration and wavelet extraction are carried out and the correspondence relationship between reservoir and seismic is made clear.The wave impedance model conformed with geologic rule is established and the inversion parameters for the area are obtained through test.Finally,high-resolution wave impedance data volume is gained by the using of logging-constrained inversion.Through the analysis of the distribution rule of favorable reservoir sand body for Sands 1 of the first member of Shahejie Formation,it is believed that the near source reservoirs present a good development in the middle part and western part of the study area.The favorable reservoirs are mainly distributed in the western part and middle part of the study area.The study result provides an important reference for further hydrocarbon exploration in the area.
引文
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[16]王延光.储层地震反演方法及应用中的关键问题与对策[J].石油物探,2002,41(3):299-303.
[17]肖佃师,卢双舫,陈海峰,等.基于频谱分解的测井曲线标准化方法[J].石油与天然气地质,2013,34(1):129-136.
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[19]许辉群,桂志先.利用测井约束地震反演预测砂体展布[J].天然气地球科学,2006,17(4):547-551.
[2]刘雯林.油气田开发地震技术[M].北京:石油工业出版社,1992:20-30.
[3]李祥权,陈少平,杜学斌,等.隐蔽油气藏勘探方法与发展趋势[J].断块油气田,2005,12(2):1-3.
[4]王权锋,郭科.约束稀疏脉冲反演在储层预测中的应用[J].测井技术,2008,32(1):33-34.
[5]郝银全,潘懋,李忠权.Jason多井约束反演技术在油气储层预测中的应用[J].成都理工大学学报:自然科学版,2004,31(3):297-299.
[6]许崇宝.测井约束地震反演分辨率及反演策略探讨[J].中国煤炭地质,2010,22(8):39-41.
[7]管振清,郭树祥,单联瑜.利用低频信息改善地震成像质量[J].断块油气田,2009,16(1):39-41.
[8]李庆忠.论地震约束反演的策略[J].石油地球物理勘探,1998,33(4):423-438.
[9]刘立彬,尚新民,韩站一.高分辨率处理技术在车排子地区的应用[J].断块油气田,2010,17(2):185-187.
[10]鲁红,李建民,刘青山,等.进行声波测井资料校正的一种方法[J].大庆石油地质与开发,1996,15(1):71-73.
[11]高喜龙.埕岛油田东斜坡地震资料特殊处理及储层预测[J].断块油气田,2012,19(1):88-91.
[12]张秀丽.测井曲线标准化对地震反演结果的影响:以大庆油田杏×井区为例[J].国外测井技术,2009,17(3):19-21.
[13]唐湘蓉,谭仲平.塔河4区碳酸盐岩测井约束反演预测[J].断块油气田,2005,12(3):13-15.
[14]梁光河.地震子波提取方法研究[J].石油物探,1998,37(1):31-39.
[15]杜锦霞,黄哲.测井约束反演及在JD地区的应用[J].断块油气田,2009,16(5):126-128.
[16]王延光.储层地震反演方法及应用中的关键问题与对策[J].石油物探,2002,41(3):299-303.
[17]肖佃师,卢双舫,陈海峰,等.基于频谱分解的测井曲线标准化方法[J].石油与天然气地质,2013,34(1):129-136.
[18]严科,毕义泉,赵红兵.胜坨油田三角洲前缘地层测井频谱分析及地质意义[J].断块油气田,2012,19(4):541-544.
[19]许辉群,桂志先.利用测井约束地震反演预测砂体展布[J].天然气地球科学,2006,17(4):547-551.
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